Wear-resistant thermocouple adopts special heat-resistant material and wear-resistant alloy material as the outer casing and wear-resistant head for temperature measurement. According to the different temperature measured, the wear-resistant protective tube materials selected are also different. Flange connection or thread connection mode can be used for temperature measurement in the range of 0-1300 degrees for a long time. Is metallurgy, chemical industry, cement plant, power plant, waste incineration industry in high temperature and wear-resistant environment z.u ideal temperature measurement sensor, wear-resistant protection tube equipped with armored core, with high wear resistance, corrosion resistance, oxidation resistance, anti-erosion performance, protection tube can also play a good protective role in high temperature conditions inside armored core, Service life can be as long as two years. The components of wear-resisting thermocouple include wear-resisting head, connecting rod, threaded connection or flange, junction box, armored inner core. The wear-resisting head should be selected according to the actual temperature of the production site, and the connecting rod, threaded connection or flange should be selected according to whether there is corrosive media on the site.

Wear-resistant thermocouple protection tube type:

1, high temperature alloy wear resistance: using special heat and wear resistant alloy material as temperature measuring external protection tube, equipped with armored core, not only has a high corrosion resistance to particle erosion, but also can play a good protection role in high temperature conditions for the inner core. With flange or thread connection form, can be long - term temperature measurement between 0-1200℃.

2, composite casting wear-resisting alloy: The composite armor technology with high-temperature alloy matrix to add wear-resisting particles, precision fusion casting. Without turning, the casing has high hardness and high temperature oxidation resistance. There are a few casting defects but it does not affect high temperature wear resistance and tightness. z.u ordinary high temperature wear resistant casing is used, and the operating temperature is 800-1200℃.

3, ceramic wear resistance: the use of recrystallized silicon carbide ceramic protective tube, high temperature up to 1300℃, equipped with K or S division armored core, specially suitable for cement kiln tail, cyclic vulcanization bed and other high temperature wear resistance conditions of the temperature measurement.

4. Ion cementing tungsten carbide: stainless steel is used as the matrix to inject tungsten carbide particles on the casing surface by ion cementing technology. With high hardness, high strength, special wear resistance, wear layer thickness 0.5-1.5mm, hard and tough inside, z.u small diameter to φ8, good surface quality, use temperature 0-800℃. The service life of coal mill in power plant is more than 2 years.

5, iron aluminum porcelain protective tube: iron base containing aluminum and clever addition of A12O3 powder, that is to make iron aluminum porcelain (TLC) specially containing gold, the iron aluminum porcelain alloy into thermocouple (resistance) protection tube, that is to become the iron aluminum porcelain thermocouple (resistance) z.u key parts - iron aluminum porcelain protective tube. According to the working temperature, wear condition, medium type, pressure equation, made of different series of iron aluminum porcelain protective tube, the existing series: TLC, TLC1, TLC2, TLC3, TLC4 five series.

TLC: Resistance to hydrochloric acid, nitric acid, sulfuric acid, resistance to sodium hydroxide, potassium hydroxide solution. The working temperature is divided into 350 degrees and 750 degrees.

TLC1 type: oxidation resistance, vulcanization resistance, zinc steam corrosion resistance, high wear resistance, good heat and shock resistance, working temperature 1100 degrees.

TLC2: working temperature 1250°C, wear resistance is lower than TLC1 type, compared with ceramic tube thermal shock resistance, high temperature thermal strength, working pressure (16MPa, especially suitable for 1250°C grade S thermocouple protection tube.

TLC3: Improved by TLC2, in addition to the characteristics of TLC2, has a special improvement in wear resistance, much higher than TLC1, under the same working condition, can increase the life twice. Operating temperature: 1300°C.

TLC4 type: from TLC1 type must be developed, in addition to the characteristics of TLC1 type, in the wear resistance has a special improvement, much higher than TLC1 type, in the same working condition, can improve the life of three times, working temperature 1100°C. The service life of the protective tube for measuring temperature at the inlet and outlet of the ball mill can reach 36 months.